Explore our premium range of precision investment castings, multi-axis CNC components, and custom alloy solutions optimized for high-wear industrial applications.
Decade of Engineering Leadership in Casting & Multi-Axis CNC Post-Processing
Founded in 2014, Dongguan SX Technology Co.,Ltd has built an illustrious reputation for delivering complex metallurgical solutions globally. We maintain an integrated, state-of-the-art facility specializing in precision investment casting (lost wax method), tight-tolerance CNC machining, and comprehensive component sub-assembly.
Our turnkey capabilities cover the entire manufacturing life cycle—from initial design optimization for manufacturability (DFM) and precision mold fabrication to advanced casting pouring, heat treating, and high-precision secondary machining. By combining investment casting with CNC post-processing under a single quality control standard, we deliver complex geometric configurations with net-shape precision, reducing overall production cycle times and raw material waste.
We work with an extensive portfolio of structural metal alloys, specifically:
Our solutions cater directly to demanding sectors including automotive components, marine hardware, industrial pump and valve systems, packaging machinery, medical devices, electronic instrument housings, and specialty construction hardware.
Why Tier-1 industrial buyers source their critical precision metal components from our Dongguan manufacturing cluster.
Dongguan provides instantaneous access to structural tooling engineers, alloy chemical plants, heat treatment facilities, and advanced coating suppliers. This co-location drastically compresses production times.
Our tooling and mold development costs are significantly lower than Western alternatives. This reduces the barriers to entry for low-to-medium volume, highly complex aerospace and medical casting runs.
We fuse traditional investment casting with modern, high-speed multi-axis CNC machining. This offers the structural integrity of a casting with the dimensional micro-precision of subtractive manufacturing.
Step inside our world-class manufacturing facility equipped with advanced wax injectors, robotic shell-building lines, and high-precision CNC machining centers.
Adhering to Strict Industrial Tolerances and Traceability Standards
At Dongguan SX Technology Co.,Ltd, quality is the cornerstone of the manufacturing industry. We firmly believe that only by controlling quality well can we survive, develop, and get better and better. Therefore, we have been working in this industry unremittingly since 2014 and continue to improve the company's team and improve the company's production capacity.
To enforce absolute compliance with global industry guidelines (such as ISO 9001:2015, ASTM, DIN, and JIS), our dedicated Quality Assurance department utilizes non-destructive and destructive metrology workflows:
Bridging metallurgical engineering and advanced precision manufacturing for critical target applications worldwide.
We produce corrosion-resistant marine hardware using grades like CF3M (316L) stainless steel. Perfect for subsea valves, propellers, impellers, and chemical pumps operating under high-salinity and shear stress conditions.
Casting complex-geometry valve bodies, manifolds, and actuators. Integrating investment casting with CNC milling enables us to guarantee sealing surface flatness down to absolute micrometers, eliminating fluid bypass risk.
Our carbon steel and titanium casting components undergo optimized stress relief annealing. They withstand extreme vibrations, heat cycles, and mechanical loads within performance powertrains and chassis assemblies.
Modern global procurement departments require more than just a physical component. They require a transparent supply partner that complies with rigorous risk management protocols. Dongguan SX Technology Co.,Ltd provides full traceability documents including material test reports (MTRs) according to EN 10204 3.1, PPAP level III submissions, dimensional inspection logs, and heat treatment charts.
We work in perfect coordination with sea, air, and express logistics providers to offer DDP, FOB, or CIF terms, ensuring your production timeline is protected from material disruptions.
The global precision casting landscape is rapidly adopting digitized, highly sustainable workflows. Chief among these trends is the integration of 3D-printed wax models, eliminating the initial tooling cost for rapid prototyping and low-volume proof-of-concept tests.
Environmental standards (RoHS and REACH compliance) are also driving foundries to use lead-free alloys and adopt green binder materials. SX Technology remains at the forefront by continuously investing in energy-efficient high-frequency furnaces and waste reclamation systems that reduce ecological impact while preserving raw mechanical performance.
Technical answers to help engineers and procurement officers make informed manufacturing choices.
For standard linear dimensions in investment casting (lost wax silica sol process), we achieve tolerances conforming to ISO 8062-3 Grade CT4 to CT6. Generally, this translates to ±0.1mm for dimensions up to 25mm, and ±0.15mm for dimensions up to 50mm. For critical interfaces requiring tighter tolerances (e.g. bearing fits, sealing grooves), we perform post-casting CNC machining to reach tolerances of ±0.005mm.
Silica sol investment casting delivers significantly superior surface finish roughness (typically Ra 3.2 to Ra 6.3 μm) and dimensional consistency compared to the water glass process. It is highly suited for stainless steel alloys and intricate structural parts. While water glass is more cost-effective for large carbon steel parts, silica sol ensures superior internal structure, reducing sub-surface micro-porosity and defects.
For custom components, the standard cycle time consists of: 1) Mold tool engineering & fabrication: 15–20 days. 2) Initial sample casting and chemical/dimensional approval (FEMA/FAl): 7–10 days. 3) Mass production casting and CNC post-machining: 20–30 days. These timelines can be accelerated using 3D-printed wax patterns for immediate validation runs without hard tooling.
We analyze the chemical makeup of every single induction furnace pour using our calibrated Optical Emission Spectrometer (OES). A sample coupon is cast alongside the parts, marked with the batch heat number, and tested. We issue a full material chemical analysis sheet and mechanical properties report under EN 10204 3.1 certification with every shipment.
Direct supply options for marine engineering, valve bodies, outdoor sports systems, and smart home automation.
SX Machining
